Closure seal for vertical coking retorts



July 18, 1933- c. MINTNER CLOSURE SEAL FOR VERTICAL COKING RETORTS Filed March 16, 1931 WNW s, ones. Louis' nrisso'uni, p p v s'sonnr, noonronnrrosr or MISSOUBl L ssien'on 'ro'sr; iouisez ofrefcnon ooA I.

' chosen-n ensures vnnrroen COKI'NGQRETORTS class described which isedapted} in use, to

maintain a conditiono'fi airtightness Wllillr tating closehtting, expensive a seal which likew sefunctions as a event communicefion with the inche appara us sealed thereby; a seal W i e1 :1- s 2lclt1l1tlO-G cO ooors o subs antially any shape or type of closure; and a seal of the described which is simple in construction and operation. th r objects will he in part obvious and in part pointed out'hereinalter. I V V The invention"accordingly comprises the elements and combinations of elements, "feetures oi construction undermingeinents of parts which will be 'eliflllPllfiQCl in the structure hereinafter described, and the scope of the application otxvhich Will be indicated in I p p p p i [use even though such p eces change then th Wing claims. 7

r V accompanying drawing, in which is lll: 5861 two of various possible embodiments oi rl 1e invention,

Fig. l is a vertical section of the delivery door of a retort illus rating the application ofthe present invention thereto; 7' I 2 is an enlarged vertical section, being a fragment of Fig. 1;

3 is a horizontulsection taken suhstuntiall on line 3-3 of-Fig. 1; and v v V P ig. i is vertical cross section similar to T end oi a vertical coking retortoi design usual in the art. Closing the end of the re-* tort- 1 is a. closure, comprising a pair oi doors 5o 3, hinged as at 5, and provided With the cus end with several objectsof the invention may be noted the provision ofs seal oi the ing' of parts, the

ment thereof.

retort 1.

1 illustrating the application of the. present invention to an alternative form of he closed such as the delivery, "or discharge 1931; Serial :ugsesee.

portions?) of the doors. or e o 3 v o lnretorts'of the class described, it is desirable um, during coking, no air or oxygen be permitted toentr the retortst the discharge door such fail-or oiiygen, combining with the" gases, issuing from the-carbonizing, hot inas s Within theretort,.1s hlrelyto engender expiosiv'e ges nurtures Within the retort or possi'hl evenleadto,disastrouslires. 6-

ilthas beenia custom heretofore to .elimi: 1 nuts such air leakage by accurately" machinin. or flpacking the disc'herge doors whereby? a close, fac'cur atevfit is securedf This method has several disadvantages, such as theincreased cost occasioned by the a'ccurateshap- The present invention provides, a sealing v 'ineens adapted for such uses which 'permitsof shape under heated conditions.

i T he sealing means ofthe present invention 'tonisry'reiractory'linings-7 set in the metal equency of repleceme'nti, 1 necessitated bytne slight warping or}.misv shaping of'tlie' doors by the heat of the retort,-

and the like.

is formed in the following manner: 7

The doors:3 are formed so as to overlap the] end of the retortl throughout the engage- In the surface of the doors 3 thus juxtaposed to the retort end is formedva 1 continuous peripheral channel 11 (see also Fig. 3), adapted to completely surround the l/Velded ativeld 20, or otherwise securely aiiixed to the under side of the retort 1 is a feed pipe 13; The pipe 13 is provided with an inlet: 15, and numerous holes 17 are formed in the under side of said pipe 13. The pipe 1c is positioned so that, upon closing of the doors 3, it lies substantiallycentrally in the channel 11. It-is desirable that the joint betweenthe pipe items the retort bot-tom 1 be waiter or air tight throughout its length.

' Suitable door opening and closing means (not shown) are provided for the doors 3. The seal or trapis effected in the following manner:

other suitable liquid is forced into the pipe 1'3, whence it runs into the channel 11 from the holes 17. A liquid level isthus established in the channel 11 as shown in Fig. 2. The water from the channel 11 runs or seeps between the doors 3 at their joint19 from the outer ends of said joint 19, and spreads inwardly along said joint, thus also sealing this joint. Throughout the time that it is desired to' maintain the seal, water continuously forced into the pipe 13 ata' rate sutficientto maintain the desired level in the channel 11, the leakage which takes place at various points being constantly made up. It will be notedthat the feed pipe 13 extending into.

the channel 11 below theliquidlevel therein (see Fig.2) forms an e'iiective liquid trap,

which aids in preventing outside air from.

reaching the interior of the retort.

The present invention is well adapted for use on other types of doors: than those shown as Sin Figs. 1, 2 and-3. For example,it may be installed in connection with a single door or closure member 21, as illustrated in Fig. 4',

' -wherein the entire channelll is contained in the one door 21 and leakage is minimized.

In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results'attained.' i

As many changes could be made in carrying out the above constructions without departing from the scopeiof the invention, it isintended that all matter contained in the above description or-shown in the" accomoperating with said channel and said feed pipe to effecta liquid trap, whereby substantial entrancefof exter or gases into said retort is prevented.

2. A vertical coking retort closure seal comprising in combination with the retort and its closure, an annular feed pipe afiiXed to and surrounding the end of said retort, means for V V -supplying liquid to said feed pipe, and a channel in said closure adapted, upon clos- 'ing of said closure, toreceive said feed pipe,

said feed i )e'includin means for deliverin P a liquid into said channel whereby a liquid level is set up therein, said liquid level cooperating with said channel and saidfeed pipe to efifect aliquid trap, whereby substantial entrance of exterior gases into said retort is prevented, said feed pipe be ng welded to said retort in a gas-proof manner throughout 1ts length.

CORBAN MINTNER. 

